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[Effects of FABP5-PPARγ signaling pathway on learning-memory ability and lipid metabolism in rats with vascular dementia]. 2020

Dan-Dan Chen, and Ying Dong, and Xiao-Dan Yang
Department of Cerebrovascular Diseases, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300300.

Objective: To investigate the effects of fatty acid binding protein 5(FABP5)- peroxisome proliferator-activated receptor gamma(PPARγ) signaling pathway on learning-memory ability and lipid metabolism in rats with vascular dementia(VD) and its mechanisms. Methods: ①VD model rats were established by ligating bilateral common carotid artery. These rats were divided into three groups: normal group (WT group), sham-operated group (sham group) and VD model group; ②WT group and FABP5 inhibitor group were set up. After four weeks, Morris water maze test was used to detect spatial learning and memory ability in rats. RT-qPCR and Western blot methods were used to detect the expressions of FABP5, PPARγ, p-PPARγ and lipoprotein lipase (LPL) in the brain at the mRNA and protein levels. The levels of TC, TG and FFA in the brain were detected by assay kits. Results: Compared with the WT group and sham group, the learning-memory ability of the VD model and the FABP5 inhibitor group were significantly decreased, and the expressions of FABP5, PPARγ, p-PPARγ and LPL were significantly decreased at mRNA level and protein level in the brain; and the levels of TC, TG and FFA were increased significantly in the brain. Conclusion: FABP5 can affect the learning-memory ability and lipid metabolism in VD rats through PPARγ and LPL.

UI MeSH Term Description Entries
D009419 Nerve Tissue Proteins Proteins, Nerve Tissue,Tissue Proteins, Nerve
D005136 Eye Proteins PROTEINS derived from TISSUES of the EYE. Proteins, Eye
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D015140 Dementia, Vascular An imprecise term referring to dementia associated with CEREBROVASCULAR DISORDERS, including CEREBRAL INFARCTION (single or multiple), and conditions associated with chronic BRAIN ISCHEMIA. Diffuse, cortical, and subcortical subtypes have been described. (From Gerontol Geriatr 1998 Feb;31(1):36-44) Arteriosclerotic Dementia,Binswanger Disease,Encephalopathy, Binswanger,Leukoencephalopathy, Subcortical,Subcortical Arteriosclerotic Encephalopathy,Vascular Dementia,Acute Onset Vascular Dementia,Arteriosclerotic Encephalopathy, Subcortical,Binswanger Encephalopathy,Binswanger's Disease,Chronic Progressive Subcortical Encephalopathy,Encephalopathy, Binswanger's,Encephalopathy, Chronic Progressive Subcortical,Encephalopathy, Subcortical Arteriosclerotic,Encephalopathy, Subcortical, Chronic Progressive,Subcortical Encephalopathy, Chronic Progressive,Subcortical Leukoencephalopathy,Subcortical Vascular Dementia,Vascular Dementia, Acute Onset,Arteriosclerotic Dementias,Arteriosclerotic Encephalopathies, Subcortical,Binswanger's Encephalopathy,Binswangers Disease,Dementia, Arteriosclerotic,Dementia, Subcortical Vascular,Dementias, Arteriosclerotic,Dementias, Subcortical Vascular,Dementias, Vascular,Disease, Binswanger,Disease, Binswanger's,Encephalopathies, Subcortical Arteriosclerotic,Encephalopathy, Binswangers,Leukoencephalopathies, Subcortical,Subcortical Arteriosclerotic Encephalopathies,Subcortical Leukoencephalopathies,Subcortical Vascular Dementias,Vascular Dementia, Subcortical,Vascular Dementias,Vascular Dementias, Subcortical
D015398 Signal Transduction The intracellular transfer of information (biological activation/inhibition) through a signal pathway. In each signal transduction system, an activation/inhibition signal from a biologically active molecule (hormone, neurotransmitter) is mediated via the coupling of a receptor/enzyme to a second messenger system or to an ion channel. Signal transduction plays an important role in activating cellular functions, cell differentiation, and cell proliferation. Examples of signal transduction systems are the GAMMA-AMINOBUTYRIC ACID-postsynaptic receptor-calcium ion channel system, the receptor-mediated T-cell activation pathway, and the receptor-mediated activation of phospholipases. Those coupled to membrane depolarization or intracellular release of calcium include the receptor-mediated activation of cytotoxic functions in granulocytes and the synaptic potentiation of protein kinase activation. Some signal transduction pathways may be part of larger signal transduction pathways; for example, protein kinase activation is part of the platelet activation signal pathway. Cell Signaling,Receptor-Mediated Signal Transduction,Signal Pathways,Receptor Mediated Signal Transduction,Signal Transduction Pathways,Signal Transduction Systems,Pathway, Signal,Pathway, Signal Transduction,Pathways, Signal,Pathways, Signal Transduction,Receptor-Mediated Signal Transductions,Signal Pathway,Signal Transduction Pathway,Signal Transduction System,Signal Transduction, Receptor-Mediated,Signal Transductions,Signal Transductions, Receptor-Mediated,System, Signal Transduction,Systems, Signal Transduction,Transduction, Signal,Transductions, Signal
D017207 Rats, Sprague-Dawley A strain of albino rat used widely for experimental purposes because of its calmness and ease of handling. It was developed by the Sprague-Dawley Animal Company. Holtzman Rat,Rats, Holtzman,Sprague-Dawley Rat,Rats, Sprague Dawley,Holtzman Rats,Rat, Holtzman,Rat, Sprague-Dawley,Sprague Dawley Rat,Sprague Dawley Rats,Sprague-Dawley Rats
D047495 PPAR gamma A nuclear transcription factor. Heterodimerization with RETINOID X RECEPTOR ALPHA is important in regulation of GLUCOSE metabolism and CELL GROWTH PROCESSES. It is a target of THIAZOLIDINEDIONES for control of DIABETES MELLITUS. PPARgamma,PPARgamma2,PPARgamma3,Peroxisome Proliferator-Activated Receptor gamma,Thiazolidinedione Receptor,mPPARgamma1,mPPARgamma2,Peroxisome Proliferator Activated Receptor gamma,Receptor, Thiazolidinedione
D050356 Lipid Metabolism Physiological processes in biosynthesis (anabolism) and degradation (catabolism) of LIPIDS. Metabolism, Lipid
D050556 Fatty Acid-Binding Proteins Intracellular proteins that reversibly bind hydrophobic ligands including: saturated and unsaturated FATTY ACIDS; EICOSANOIDS; and RETINOIDS. They are considered a highly conserved and ubiquitously expressed family of proteins that may play a role in the metabolism of LIPIDS. Fatty Acid-Binding Protein,Adipocyte Lipid Binding Protein,Adipocyte-Specific Fatty Acid-Binding Protein,Brain-Type Fatty Acid-Binding Protein,Cytosolic Lipid-Binding Proteins,Fatty Acid-Binding Protein, Cardiac Myocyte,Fatty Acid-Binding Protein, Myocardial,Fatty Acid-Binding Proteins, Adipocyte-Specific,Fatty Acid-Binding Proteins, Brain-Specific,Fatty Acid-Binding Proteins, Cytosolic-Specific,Fatty Acid-Binding Proteins, Intestinal-Specific,Fatty Acid-Binding Proteins, Liver-Specific,Fatty Acid-Binding Proteins, Myocardial-Specific,Fatty Acid-Binding Proteins, Plasma-Membrane Specific,Intestinal Fatty Acid-Binding Protein,Liver Fatty Acid-Binding Protein,Myocardial Fatty Acid-Binding Protein,Plasma Membrane Fatty Acid-Binding Protein,Acid-Binding Protein, Fatty,Adipocyte Specific Fatty Acid Binding Protein,Brain Type Fatty Acid Binding Protein,Cytosolic Lipid Binding Proteins,Fatty Acid Binding Protein,Fatty Acid Binding Protein, Cardiac Myocyte,Fatty Acid Binding Protein, Myocardial,Fatty Acid Binding Proteins,Fatty Acid Binding Proteins, Adipocyte Specific,Fatty Acid Binding Proteins, Brain Specific,Fatty Acid Binding Proteins, Cytosolic Specific,Fatty Acid Binding Proteins, Intestinal Specific,Fatty Acid Binding Proteins, Liver Specific,Fatty Acid Binding Proteins, Myocardial Specific,Fatty Acid Binding Proteins, Plasma Membrane Specific,Intestinal Fatty Acid Binding Protein,Lipid-Binding Proteins, Cytosolic,Liver Fatty Acid Binding Protein,Myocardial Fatty Acid Binding Protein,Plasma Membrane Fatty Acid Binding Protein,Protein, Fatty Acid-Binding
D051381 Rats The common name for the genus Rattus. Rattus,Rats, Laboratory,Rats, Norway,Rattus norvegicus,Laboratory Rat,Laboratory Rats,Norway Rat,Norway Rats,Rat,Rat, Laboratory,Rat, Norway,norvegicus, Rattus

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